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【单选题】
考虑下述选择排序算法: 最坏情况下该算法做 次交换运算,这种情况在下列哪种输入条件下发生?A.
数列元素各不相等且无序
B.
数列元素各不相等且递减有序
C.
数列所有元素均相等
D.
数列元素各不相等且递增有序
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